{
  "bibcode": "2020GCN.27987....1L",
  "body": "The LIGO Scientific Collaboration and the Virgo\nCollaboration report:\n\n*** This is a test of the Early Warning alert system\nresulting from archival O3 data. Times and sky\nlocalizations are fictitious. ***\n\nWe identified the compact binary merger candidate\nMS200618bq during real-time processing of data from LIGO\nHanford Observatory (H1) and LIGO Livingston Observatory\n(L1) at 2020-06-18 11:01:20.915 UTC (GPS time:\n1276513298.915). The candidate was found by the GstLAL\n[1] analysis pipeline in the early warning configuration.\nAn Early Warning GCN Notice was issued 5 seconds before\nthe projected merger time. The GCN Notice included the\nstandard data products associated with CBC alerts, namely\nlocalization [2] and source classification [3].\n\nHowever, this Early Warning alert (MS200618bq) is no\nlonger of interest because it was not detected by the\nregular, full-bandwidth search.\n\n[1] Messick et al. PRD 95, 042001 (2017)\n[2] Singer & Price PRD 93, 024013 (2016)\n[3] Chatterjee et al. The Astrophysical Journal 896, 1 (2020)",
  "circularId": 27987,
  "createdOn": 1592570455000,
  "email": "ryan.magee@ligo.org",
  "subject": "LIGO/Virgo MS200618bq: Retraction of a test binary neutron star candidate",
  "submitter": "Ryan Magee at LVC  <ryan.magee@ligo.org>"
}